DE10260692B4 - liquid-crystal display - Google Patents
liquid-crystal display Download PDFInfo
- Publication number
- DE10260692B4 DE10260692B4 DE2002160692 DE10260692A DE10260692B4 DE 10260692 B4 DE10260692 B4 DE 10260692B4 DE 2002160692 DE2002160692 DE 2002160692 DE 10260692 A DE10260692 A DE 10260692A DE 10260692 B4 DE10260692 B4 DE 10260692B4
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- Prior art keywords
- cell
- twisted nematic
- super
- liquid crystal
- nematic cell
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133636—Birefringent elements, e.g. for optical compensation with twisted orientation, e.g. comprising helically oriented LC-molecules or a plurality of twisted birefringent sublayers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1396—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell
- G02F1/1397—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell the twist being substantially higher than 90°, e.g. STN-, SBE-, OMI-LC cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
- G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
- G02F1/13473—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells for wavelength filtering or for colour display without the use of colour mosaic filters
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Flüssigkristallanzeige zur Darstellung von hellen Zeichen und Mustern in einem dunklen Umfeld, mit einer ersten Super-Twisted-Nematik-Zelle (STN) und einer zweiten Super-Twisted-Nematik-Zelle (STN), die aneinander anliegend zwischen zwei unter 90° zueinander ausgerichteten Polarisatoren angeordnet sind, aus transparenten Substraten bestehen, zwischen denen mit einer STN-Flüssigkristallsubstanz gefüllte Zellenräume gebildet sind und die von ihrer einem Beobachter abgewandten Seite her von einer Lichtquelle durchleuchtbar sind, wobei die erste Super-Twisted-Nematik-Zelle auf ihren Substraten einander gegenüberliegende Elektroden aufweist, die von einer Ansteuerspannung beaufschlagbar sind und wobei die erste und zweite Super-Twisted-Nematic-Zelle eine Doppel-Super-Twisted-Nematic-Zelle bilden, die einen steilen Anstieg ihrer Transmissionskurve im blauen Bereich des Lichtspektrums besitzt, dadurch gekennzeichnet, daß die zweite Super-Twisted-Nematik-Zelle (2) eine passive Zelle ist und die Elektroden (6, 7) der ersten Super-Twisted-Nematik-Zelle (1) von einer eine völlige Durchschaltung der Helix der Flüssigkristallsubstanz bewirkenden hohen Ansteuerspannung beaufschlagbar sind sowie die Lichtquelle (13) eine weißes Licht mit einem Blauanteil emittierende Lichtquelle (13) ist, dass die...liquid-crystal display to display bright characters and patterns in a dark Environment, with a first super twisted nematic cell (STN) and a second super-twisted nematic cell (STN), which abut each other between two aligned at 90 ° to each other Polarizers are arranged, consist of transparent substrates, between those with an STN liquid crystal substance filled cell spaces are formed and the side facing away from an observer be transilluminated by a light source, wherein the first super-twisted nematic cell on their substrates opposite each other Having electrodes which can be acted upon by a drive voltage are and where the first and second super-twisted nematic cell form a double super twisted nematic cell that has a steep Increase in their transmission curve in the blue region of the light spectrum has, characterized in that the second super twisted nematic cell (2) is a passive cell and the electrodes (6, 7) of the first Super-twisted nematic cell (1) from one to the other Circulation of the helix of the liquid crystal substance causing high driving voltage can be acted upon and the light source (13) a white one Light with a blue light emitting light source (13) is that the...
Description
Die Erfindung bezieht sich auf eine Flüssigkristallanzeige zur Darstellung von hellen Zeichen und Mustern in einem dunklen Umfeld, mit einer ersten Super-Twisted-Nematik-Zelle (STN) und einer zweiten Super-Twisted-Nematik-Zelle (STN), die aneinander anliegend zwischen zwei unter etwa 90° zueinander ausgerichteten Polarisatoren angeordnet sind, aus transparenten Substraten bestehen, zwischen denen mit einer TN-Flüssigkristallsubstanz, insbesondere eine STN-Flüssigkristallsubstanz gefüllte Zellenräume gebildet sind und die von ihrer einem Beobachter abgewandten Seite her von einer Lichtquelle durchleuchtbar sind, wobei die erste Super-Twisted-Nematik-Zelle auf ihren Substraten einander gegenüberliegende Elektroden aufweist, die von einer Ansteuerspannung beaufschlagbar sind und wobei die erste und zweite Super-Twisted-Nematic-Zelle eine Doppel-Super-Twisted-Nematic-Zelle bilden, die einen steilen Anstieg ihrer Transmissionskurve im blauen Bereich des Lichtspektrums besitzt.The The invention relates to a liquid crystal display for illustration of bright characters and patterns in a dark environment, with one first super twisted nematic cell (STN) and a second super twisted nematic cell (STN), which abut each other between two at about 90 ° to each other aligned polarizers are arranged, made of transparent Substrates exist, between those with a TN liquid crystal substance, in particular an STN liquid crystal substance filled cell spaces are formed and the side facing away from an observer are transilluminated by a light source, wherein the first super-twisted nematic cell On its substrates having opposing electrodes, the be acted upon by a drive voltage and wherein the first and second super twisted nematic cell form a double super twisted nematic cell, a steep increase in their transmission curve in the blue area of the light spectrum.
Der Steile Anstieg der Transmissionskurve derartiger Doppel-Super-Twisted-Nematic-Zellen ist in seiner Lage sowohl temperatur- als auch ansteuerspannungsabhängig. So verläuft der steile Anstieg der Transmissionskurve bei höheren Temperaturen auf einem niedrigeren Wellenlängenniveau als bei niedrigeren Temperaturen. Wird die Zelle von einer Lichtemissionsdiode mit weißem Licht durchleuchtet, besitzt deren Lichtspektrum mehrere Spitzenwellenlängen, von denen sich eine ausgeprägte Spitzenwellenlänge im blauen und eine im gelbgrünen Bereich des Lichtspektrums befindet. Durch die Verschiebung des steilen Anstiegs der Transmissionskurve der Zelle verändert sich bei Temperaturveränderung auch das Intensitätsverhältnis der blauen zur gelbgrünen Spitzenwellenlänge der an sich weißes Licht emittierenden Lichtemissionsdiode und damit auch die Farbe des emittierten Lichts. Bei tiefen Temperaturen erscheint die Flüssigkristallanzeige gelbgrünlicher als bei hohen Temperaturen.Of the Steep increase in the transmission curve of such double super twisted nematic cells is in its position both temperature and drive voltage dependent. So extends the steep rise of the transmission curve at higher temperatures on one lower wavelength level as at lower temperatures. Will the cell be from a light emitting diode with white Light shines through, its light spectrum has several peak wavelengths, from which is a pronounced Peak wavelength in blue and one in yellow-green Area of the light spectrum is located. By shifting the sharp increase in the transmission curve of the cell changes at temperature change also the intensity ratio of the blue ones to the yellow-green Peak wavelength the white one Light-emitting light-emitting diode and thus the color of the emitted light. At low temperatures, the liquid crystal display appears yellow greenish as at high temperatures.
Um bei weißer Beleuchtung auch eine neutrale Transmissionsfarbe der angesteuerten Zeichen und Muster zu erhalten, ist es bekannt die erste Super-Twisted-Nematik-Zelle mit einer relativ niedrigen Ansteuerspannung anzusteuern. Dies führt nachteiligerweise aber zu langen Schaltzeiten. Sollen schnell sich ändernde Informationen wie z. B. eine Geschwindigkeitsanzeige in einem Kraftfahrzeug dargestellt werden, ist dies aufgrund der langen Schaltzeiten nicht möglich.Around in white Lighting also a neutral transmission color of the driven To obtain characters and patterns, it is known the first super-twisted nematic cell with a relative to drive low drive voltage. This leads disadvantageously but too long switching times. Should fast changing information such. For example, a speedometer in a motor vehicle is shown this is not possible due to the long switching times.
Aus
der
Aus
der
Die
Die
Die
Aus
der
Aus
der
Aufgabe der Erfindung ist es daher eine Flüssigkristallanzeige der eingangs genannten Art zu schaffen, durch die über einen großen Temperaturbereich weitgehend verzögerungsfrei wechselnde Informationen in zumindest weitgehend unveränderlicher weißer Farbe in einem dunklen Umfeld kontrastreich darstellbar sind.task The invention is therefore a liquid crystal display of the beginning to create said type, over a wide temperature range largely delay-free changing information in at least largely immutable white Color in a dark environment can be displayed in high contrast.
Diese Aufgabe wird erfindungsgemäß durch eine Flüssigkristallanzeige mit den Merkmalen des Patentanspruchs 1 gelöst.These Task is achieved by a liquid crystal display solved with the features of claim 1.
Die hohe Ansteuerspannung führt zu einer schnellen Reaktion der angesteuerten Bereiche und somit zu einem guten dynamischen Verhalten der Anzeige.The high drive voltage leads to a quick reaction of the driven areas and thus to a good dynamic behavior of the ad.
Die gelbe Eigenfarbe der zweiten Zelle wird durch den erhöhten Blauanteil in der Spektralverteilung des Lichts der Lichtquelle ausgeglichen, so dass die angesteuerten Zeichen und Muster dem Beobachter in weißer Farbe erscheinen.The yellow inherent color of the second cell is due to the increased proportion of blue balanced in the spectral distribution of the light of the light source, so that the targeted characters and patterns are white to the observer appear.
Um den Ausgleich der Färbung der Flüssigkristallanzeige variieren zu können, ist die Ansteuerspannung variabel einstellbar. Die selbsttätige Farbkompensation der temperaturabhängigen Eigenfarbe der zweiten Zelle ist erfindungsgemäß dadurch möglich, dass die Ansteuerspannung von einer Regeleinheit einstellbar ist, der ein Farbsignal eines die Farbe der dargestellten Zeichen und Muster erfassenden Sensors zuleitbar ist.Around the balance of the coloring the liquid crystal display to be able to vary the drive voltage is variably adjustable. The automatic color compensation the temperature-dependent Intrinsic color of the second cell is inventively possible in that the drive voltage adjustable by a control unit, which is a color signal of a the color of the illustrated character and pattern sensing sensor can be supplied.
Die zweite Zelle sorgt in Verbindung mit der ersten Zelle dafür, dass in einem Temperaturbereich von etwa minus 30° bis plus 85° das Umfeld der angesteuerten Zeichen und Muster nicht grau sondern dunkel ist. Damit wird auf einfache Weise eine hochdynamische Anzeige hohen Kontrasts mit weißem Licht in dunklem Umfeld erreicht.The second cell, in conjunction with the first cell, ensures that in a temperature range of about minus 30 ° to plus 85 ° the environment of the controlled Signs and patterns are not gray but dark. This will open simple way a highly dynamic high contrast display with white light achieved in a dark environment.
Besteht die Lichtquelle aus einer oder mehreren Lichtemissionsdioden (LED's), so ist dazu nur ein geringer Bauraum erforderlich und eine Wärmebelastung durch die Lichtquelle weitgehend vermieden.Consists the light source from one or more light emitting diodes (LED's), so this is just a small space required and a heat load by the light source largely avoided.
Dies kann je nach dem subjektiven Empfinden des Beobachters dadurch erfolgen, dass die Ansteuerspannung manuell einstellbar ist. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben. Es zeigen:This depending on the subjective feelings of the observer, that the drive voltage is manually adjustable. An embodiment The invention is illustrated in the drawing and will be described below described in more detail. Show it:
Die
in
Der
zwischen den Substraten
In
dem Zellenraum
Die
zweite Zelle
Sowohl
auf der einem Beobachter
Auf
der dem Beobachter
Das
linke Elektrodenpaar
In
Der
Punkt I der Spannungskurve zeigt die maximale Ansteuerspannung,
bevor der Bereich des angesteuerten Elektrodenpaares
Der
Punkt
Das
in
Die
Transmissionskurven
Eine
herkömmliche
Lichtemissionsdiode zur Erzeugung weißen Lichts auf Basis einer
blauen Lichtemissionsdiode besitzt eine ausgeprägte Spitzenwellenlänge im blauen
Bereich von etwa 420 bis 480 nm nahe unterhalb des Anstiegs
Da
es bei Temperaturreduzierung zu einer Verschiebung der Transmissionskurve
zu einer höheren Wellenlänge kommt,
verändert
sich das Intensitätsverhältnis blauer
zu gelbgrüner
Spitzenwellenlänge
und somit die Farbe. Bei tieferen Temperaturen erscheint die Darstellung
der Flüssigkristallzelle
gelbgrünlicher
als bei höheren
Temperaturen. Dies ist auch an den in den
Diese
Fluoreszenzmaterialien sind so gewählt, daß es mehrere Spitzenwellenlängen gibt,
wobei sich im blauen Bereich des Lichtspektrums ein etwa kontinuierlicher
breitbandiger Lichtverteilungsbereich
Die
ausgeprägte
Spitzenwellenlänge
Als
geeignet haben sich folgende Phosphorgemische erwiesen:
- 11
- erste Zellefirst cell
- 22
- zweite Zellesecond cell
- 33
- Substratsubstratum
- 44
- Substratsubstratum
- 55
- Zellenraumcell space
- 66
- Elektrodeelectrode
- 77
- Elektrodeelectrode
- 88th
- Spannungsquellevoltage source
- 99
- Substratsubstratum
- 1010
- Zellenraumcell space
- 1111
- Substratsubstratum
- 1212
- Beobachterobserver
- 1313
- Lichtquellenlight sources
- 1414
- Polarisatorpolarizer
- 1515
- Polarisatorpolarizer
- 1616
- erste Transmissionskurvefirst transmission curve
- 1717
- zweite Transmissionskurvesecond transmission curve
- 1818
- Anstiegrise
- 1919
- Spektralstrahlungspectral radiance
- 2020
- LichtverteilungsbereichLight distribution area
- 2121
- SpitzenwellenlängePeak wavelength
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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DE2002160692 DE10260692B4 (en) | 2002-12-23 | 2002-12-23 | liquid-crystal display |
EP20030104403 EP1452903B1 (en) | 2002-12-23 | 2003-11-27 | Liquid crystal display |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE2002160692 DE10260692B4 (en) | 2002-12-23 | 2002-12-23 | liquid-crystal display |
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Publication Number | Publication Date |
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DE10260692A1 DE10260692A1 (en) | 2004-07-22 |
DE10260692B4 true DE10260692B4 (en) | 2009-05-20 |
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DE2002160692 Expired - Fee Related DE10260692B4 (en) | 2002-12-23 | 2002-12-23 | liquid-crystal display |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100430787C (en) * | 2005-07-21 | 2008-11-05 | 宏碁股份有限公司 | Double-layer display panel, flat panel display thereof and image display method after shutdown |
DE102006040523B4 (en) * | 2006-08-30 | 2014-10-16 | Johnson Controls Automotive Electronics Gmbh | Display device for a motor vehicle and use of a display device |
CN102778785A (en) * | 2012-08-29 | 2012-11-14 | 信利半导体有限公司 | Passive driving nematic liquid crystal display panel |
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JPH0234817A (en) * | 1988-07-25 | 1990-02-05 | Fujitsu Ltd | liquid crystal display device |
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US5126868A (en) * | 1988-12-27 | 1992-06-30 | Casio Computer Co., Ltd. | Color compensated double layered liquid crystal display device |
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EP1138747A2 (en) * | 2000-03-27 | 2001-10-04 | General Electric Company | A single phosphor for creating white light with high luminosity and high cri in a uv led device |
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DE10201052A1 (en) * | 2001-01-16 | 2002-08-01 | Visteon Global Tech Inc | LED backlighting |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6255670B1 (en) * | 1998-02-06 | 2001-07-03 | General Electric Company | Phosphors for light generation from light emitting semiconductors |
US6853437B1 (en) * | 1998-08-25 | 2005-02-08 | Citizen Watch Co., Ltd. | Liquid crystal display and method for manufacturing the same |
FI109632B (en) * | 2000-11-06 | 2002-09-13 | Nokia Corp | White lighting |
JP3826709B2 (en) * | 2000-12-22 | 2006-09-27 | 豊田合成株式会社 | Liquid crystal display |
-
2002
- 2002-12-23 DE DE2002160692 patent/DE10260692B4/en not_active Expired - Fee Related
-
2003
- 2003-11-27 EP EP20030104403 patent/EP1452903B1/en not_active Expired - Lifetime
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DE3888519T2 (en) * | 1987-10-06 | 1994-10-20 | Asahi Glass Co Ltd | LIQUID CRYSTAL DISPLAY DEVICE. |
JPH0234817A (en) * | 1988-07-25 | 1990-02-05 | Fujitsu Ltd | liquid crystal display device |
EP0370730A2 (en) * | 1988-11-22 | 1990-05-30 | Nippon Shokubai Kagaku Kogyo Co. Ltd. | Method of producing ethylenediamines |
US5126868A (en) * | 1988-12-27 | 1992-06-30 | Casio Computer Co., Ltd. | Color compensated double layered liquid crystal display device |
EP1138747A2 (en) * | 2000-03-27 | 2001-10-04 | General Electric Company | A single phosphor for creating white light with high luminosity and high cri in a uv led device |
DE10036940A1 (en) * | 2000-07-28 | 2002-02-07 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Luminescence conversion LED |
DE10201052A1 (en) * | 2001-01-16 | 2002-08-01 | Visteon Global Tech Inc | LED backlighting |
Also Published As
Publication number | Publication date |
---|---|
DE10260692A1 (en) | 2004-07-22 |
EP1452903B1 (en) | 2015-05-06 |
EP1452903A3 (en) | 2004-11-10 |
EP1452903A2 (en) | 2004-09-01 |
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